Printer

I have an attached HP LaserJet 2100 printer that’s been freaking out lately. It will either print a single page or nothing, then its orange light starts flashing. I tried to Add a printer, but made the apparent mistake of trying to add a new driver (vs. using the existing one). Now, it won’t do a thing. I downloaded the driver from HP’s website, and I’m hoping that if I shut down the PC and wait awhile, then re-boot, that I’ll be able to add the printer again. This phenomenom is a recent occurence; the printer (networked) has worked fine for the past few months I’ve had it.